Thank you very much Andreas! You're right. I've just tried rule-based label with a large contours layer and difference in time consumption is notable.
So, in Lester's case, rule would be just: "ELEV" % 1000 = 0 Regards Carlos 2016-08-18 8:41 GMT-05:00 Neumann, Andreas <[email protected]>: > Hi Lester/Carlos, > > Even better would be to use a rule-based label (available since 2.14 I > think). > > With rule-based labeling it is most likely a bit faster, since QGIS > doesn't have to deal with all of the contours that are not a multiple of > 1000. > > In your case, with the CASE statement it still has to process every > contour line. > > Andreas > > On 2016-08-18 15:31, Lester Anderson wrote: > > Thanks Carlos, that worked fine > > On 18 August 2016 at 14:11, Carlos Cerdán <[email protected]> wrote: > > Hi Lester. > > I think you're close to do it. Try this label expression: > > case when "ELEV"%1000=0 then "ELEV" end > > Good luck > > Carlos > > > 2016-08-18 7:49 GMT-05:00 Lester Anderson <[email protected]>: > > > Hello, > > Is there a simple way of labelling only certain contours rather than all? > > I have set up bathymetry styling for thick contours (1000) and thin (100): > "ELEV" % 1000 = 0 (thick) > "ELEV" % 1000 <> 0 (thin) > > I would like to label only the 1000 contours, i.e. conditional labelling. > > Thanks > _______________________________________________ > Qgis-user mailing list > [email protected] > List info: http://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user > > > > > _______________________________________________ > Qgis-user mailing list > [email protected] > List info: http://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user > > _______________________________________________ > Qgis-user mailing list > [email protected] > List info: http://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user > > > >
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